- Operation Theory:NAVISANI Sanitary Disposable Toilet Seat Cover is automatically controlled by a build-in microcomputer inside. Press the botton or put your hand in front of the sensor, the disposable film will automatically turn exactly one round to ensure one time use. The used plastic film will be destroyed by a cutter to ensure one time use.

- Microcomputer & Indication Light (Red):• Overload warning signal: the LED light will stay on for 2 seconds;• If no loading / counter wheel fault / the film roller is not installed in place: the LED light will be on all the time;• The LED will flash when battery is in low voltage;• Restarting interval (6 seconds) to avoid waste.

- Power Supply:• Rechargeable battery: One battery charging can be used more than 3,000 times.• Adapter: input voltage 100V-240V; output voltage: DC 6-7.5V.

- Charging Ways:• If the power supply is available around the toilet:Open the white tarpaulin located on the back of pedestal and have it charged.• If the power supply is not available around the toilet:A.push the lever on the bottom, then take out the seat and have it charged where power supply is available. B.open the cover located on the back of pedestal, pull the red ribbon and take out the battery, then have it recharged where available.

- Soft Closing Cover:• NAVISANI Sanitary Disposable Toilet Seat Covers have a damper, which can make it close softly, exceed 50,000 use times.

- Replacement Warning:• A red line will appear when the Sanitary Disposable Toilet Seat Covers film remains 1-2m, it reminds you to replace the film roll.